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In the small photo, the ruler is stationary and no stroboscopic effects are seen. In the other photo, multiple images are produced by each flicker cycle as the ruler moves across the scene. Both pictures were taken under a flickering light source (at 120 Hz) with an exposure time of 1/15th of a secondhttps://www.led-professional.com/media/resources-1_led-reports-roadmaps_assist-released-calculation-guidelines-to-avoid-stroboscopic-effects-in-ssl-lighting_ASSIST%20-%20stroboscopic%20effects%20at%20120Hz.jpg/viewhttps://www.led-professional.com/media/resources-1_led-reports-roadmaps_assist-released-calculation-guidelines-to-avoid-stroboscopic-effects-in-ssl-lighting_ASSIST%20-%20stroboscopic%20effects%20at%20120Hz.jpg/@@images/image-1200-bad40b5bdeba6123aad24f29e3ef3d1b.jpeg
In the small photo, the ruler is stationary and no stroboscopic effects are seen. In the other photo, multiple images are produced by each flicker cycle as the ruler moves across the scene. Both pictures were taken under a flickering light source (at 120 Hz) with an exposure time of 1/15th of a second
